My son bought a 2005 liberty with the 2.8crd. 205k miles. So we decided to put a timing belt and water pump in. Bought the pins had everything lined up put the belt on pulled pins and he started it but the tensioner wasn’t tight and think the timing slipped. So I’ve pulled injectors and made sure to find tdc then rotate 90 degrees. Rotated cams around to get the pins in. Pulled gears and verified the key ways in the cams point inward towards each other. Rotate the engine over by hand to ensure nothing hits. But it won’t start. It will hit and fire but won’t run. Am I missing something in the timing or do I need to pull the cam carrier and inspect valves and rocker arms? Thank you for any help.